greenhouses

Greenhouses

Imperial Builders & Supply built their first double poly and steel greenhouses in the 1970s and have since built hundreds of ranges throughout Florida and the Southeast. 

Designs

Our “Grand” Greenhouse designs have been engineered to meet the demands for increased wind loads and taller greenhouses. Significant improvements have been made to enhance strength, longevity and versatility. These designs are also easier to erect, allowing nursery owners the option of building their own greenhouses.

“Grand” Designs

Grand Trussed
Bow

grand trussed bow

Grand
Sawtooth

grand sawtooth

Free
Standing

free standing

Grand
Gothic

Grand Channel
Truss

grand channel truss

Widths:

21’, 23’, 30’ & 35’

21’ & 24’

30’ & 35’

30’

20’, 24’, 30’, 36’, 40’ & 42’

Price Range: 

Moderate

Moderate to High

Moderate

Moderate

Moderate to High

Structural Strength: 

Moderate to Substantial

Moderate

Moderate

Moderate

Substantial

Hanging Capacity: 

Moderate

Moderate

Less than Moderate

Moderate

Substantial

Gutter Connection Capability: 

Yes

Yes

No

Yes

Yes

Cooling System Required: 

Only on Larger Ranges

No

No

Only on Larger Ranges

Only on Larger Ranges

Comments: 

Most Popular Design

Works Best Under Shaded Conditions

Primarily Used for Vegetable Re-sets

Better Cooling

Also Used for Warehouses/Sheds

Grand Trussed
Bow

grand trussed bow

Widths: 21’, 23’, 30’ & 35’

Price Range: Moderate

Structural Strength: Moderate to Substantial

Hanging Capacity: Moderate

Gutter Connection Capability: Yes

Cooling System Required: Only on Larger Ranges

Comments: Most Popular Design

Grand
Sawtooth

grand sawtooth

Widths: 21’ & 24’

Price Range: Moderate to High

Structural Strength: Moderate

Hanging Capacity: Moderate

Gutter Connection Capability: Yes

Cooling System Required: No

Comments: Works Best Under Shaded Conditions

Free
Standing

free standing

Widths: 30’ & 35’

Price Range: Moderate

Structural Strength: Moderate

Hanging Capacity: Less than Moderate

Gutter Connection Capability: No

Cooling System Required: No

Comments: Primarily Used for Vegetable Re-sets

Grand
Gothic

Widths: 30’

Price Range: Moderate

Structural Strength: Moderate

Hanging Capacity: Moderate

Gutter Connection Capability: Yes

Cooling System Required: Only on Larger Ranges

Comments: Better Cooling

Grand Channel
Truss

grand channel truss

Widths: 20’, 24’, 30’, 36’, 40’ & 42’

Price Range: Moderate to High

Structural Strength: Substantial

Hanging Capacity: Substantial

Gutter Connection Capability: Yes

Cooling System Required: Only on Larger Ranges

Comments: Also Used for Warehouses/Sheds

All of the “Grand” Greenhouses and Bar Joist Greenhouses offer a variety of steel posts that are engineered based on the height and width of the greenhouse. With additional roof framing added, corrugated and twin wall poly-carbonate roof covering is also available in these designs. Price range and structural strength is by comparison to each style. 

                              Bar Joist Designs

Non-Windloaded Designs                             

Bar Joist

bar joist

Bar Joist
Sawtooth

Imperial Arch

imperial arch

Wood Post Trussed Bow

wood post trussed bow

Widths:

20’ & 23’ 

20’ & 23’ 

20’ & 23’ 

21’ & 30’

Price Range: 

High

High

Inexpensive

Inexpensive

Structural Strength: 

Substantial

Substantial

Slight

Slight

Hanging Capacity: 

Substantial

Substantial

Slight

Slight

Gutter Connection Capability: 

Yes

Yes

Yes

Yes

Cooling System Required: 

Only on Larger Ranges

No

Only on Larger Ranges

Only on Larger Ranges

Comments: 

Basket or Vegetable Hanging

Basket or Vegetable Hanging

1st Timer GRHS

Temporary/Moveable Structure

Bar Joist Designs

Bar Joist

bar joist

Widths: 20’ & 23’ 

Price Range: High

Structural Strength: Substantial

Hanging Capacity: Substantial

Gutter Connection Capability: Yes

Cooling System Required: Only on Larger Ranges

Comments: Basket or Vegetable Hanging

Bar Joist
Sawtooth

Widths: 20’ & 23’

Price Range: High

Structural Strength: Substantial

Hanging Capacity: Substantial

Gutter Connection Capability: Yes

Cooling System Required: No

Comments: Basket or Vegetable Hanging

Non-Windloaded Designs

Imperial Arch

imperial arch

Widths: 20’ & 23’

Price Range: Inexpensive

Structural Strength: Slight

Hanging Capacity: Slight

Gutter Connection Capability: Yes

Cooling System Required: Only on Larger Ranges

Comments: 1st Timer GRHS

Wood Post Trussed Bow

wood post trussed bow

Widths: 21’ & 30’

Price Range: Inexpensive

Structural Strength: Slight

Hanging Capacity: Slight

Gutter Connection Capability: Yes

Cooling System Required: Only on Larger Ranges

Comments: Temporary/Moveable Structure

Features & Benefits

1
2
3
4
5

With the option of galvanized or aluminum, “V-Bottom” gutters are stronger, larger and more durable than most gutters.

 

All bolts are hot dipped galvanized or stainless steel. Stronger overall design will meet or exceed building code requirements. 

 

Reinforced bow to gutter connections. Stronger truss-gutter-post connections. 

 

Webbing brackets eliminate truss holes. Trusses are stronger and more rigid. Pipe Purlins combined in webbing brackets. Makes for cleaner stronger connections. 

 

Larger stronger posts available for taller sidewalls. 

greenhouse features
  • V-trac, all aluminum
  • 12’ gutters & splices
  • With wire-lock bases included (for poly & shade houses) or without bases (for poly carbonate coverings)
  • 1/8”, 3003 high strength aluminum
  • Eliminates the need for gutter maintenance & replacement for a small increase in price over 14  ga. steel gutters
AVAILABLE POSTS
  • 4” X 4” X 9 GA. OR 11 GA. PRE-GALVANIZED OR HOT DIPPED GALVANIZED SQ. TUBING
  • 3-1/2” X 3-1/2” X 12 GA. PRE-GALVANIZED C-POST
  • 3” X 3” X 11 GA. PRE-GALVANIZED OR HOT DIPPED GALVANIZED SQ. TUBING
  • 3” X 3” X 12 GA. PRE-GALVANIZED C-POST
  • 3-1/4” X 2” X 12 GA. PRE-GALVANIZED C-POSTS
1

“V-Trac” galvalume gutters are stronger, larger and more durable than most gutters.

2

All bolts are hot dipped galvanized or stainless steel. Stronger overall design will meet or exceed building code requirements.

3

Reinforced bow to gutter connections. Stronger truss-gutter-post connections. 

4

Webbing brackets eliminate truss holes. Trusses are stronger and more rigid. Pipe Purlins combined in webbing brackets. Makes for cleaner stronger connections.

5

Larger stronger posts available for taller sidewalls. 

greenhouse features

AVAILABLE POSTS

  • 4” X 4” X 9 GA. OR 11 GA. PRE-GALVANIZED OR HOT DIPPED GALVANIZED SQ. TUBING
  • 3-1/2” X 3-1/2” X 12 GA. PRE-GALVANIZED C-POST
  • 3” X 3” X 11 GA. PRE-GALVANIZED OR HOT DIPPED GALVANIZED SQ. TUBING
  • 3” X 3” X 12 GA. PRE-GALVANIZED C-POST
  • 3-1/4” X 2” X 12 GA. PRE-GALVANIZED C-POSTS

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